Selecting any of the elements from the periodic table above will retrieve ascii files containing tabulations of the characteristic x-ray absorption edge energies, and of the anomalous scattering coefficients f' and f" as a function of incident x-ray energy. To generate a plot of selected scattering coefficients use the forms interface to this data.

List of selected X-ray absorption edge energies (in electron volt, eV) Element: Atomic Number: Atomic Weight: K Edge: L1 Edge: L2 Edge: L3 Edge: M1 Edge: M5 Edge

X射线吸收细结构光谱 (X-ray absorption fine structure, XAFS)是一种基于同步辐射光源的分析方法。 它测量的基本物理量为X射线质量吸收系数μ (E)。

This EXAFS database, which consists of just about every scan of data ever taken by Farrel Lytle, is a service of the International X-ray Absorption Society. The site is hosted by the Center for Synchrotron Radiation Research and Instrumentation at Illinois Institute of Technology.

2006年6月3日 · Periodic Table of x-ray absorption values (McMaster Tables). Book of x-ray absorption values (based on McMaster Tables). X-ray Interaction with Matter at LBL Center for X-ray Optics

如下图所示，XAS原始数据可以分为近边XANES和扩展边EXAFS两部分。 近边对电子价态比较敏感，而扩展边通过数据处理和拟合可以获得丰富的结构信息。 吸收边越往高能量方向移动，说明价态越高。 Pre-edge区域也能提高丰富的指纹信息，这个就要结合文献具体分析。 EXAFS的数据处理后，能转换成波长k空间的震荡（如下图）。 而k空间的数据可通过傅里叶变换得到R空间的数据。 R空间数据能得到样品内部的精细结构（比如，键长的大概值）。 此外，通过R空间的逆傅 …

The XAS Data Library is designed to hold X-ray Absorption Spectra (EXAFS and XANES) using an SQLite database, with array data encoded using JSON. The principle goal for the library is as a proposed standard for storing and exchanging XAS data, with implementation here intended as initial reference and request for comments.

以下，我们对xas数据解析做一些基本介绍。 一、xas数据解析功能介绍. 如图1所示，xas原始数据可以分为近边xanes和扩展边exafs两部分。近边对电子结构、价态、组分等比较敏感，而扩展边通过数据处理和拟合可以获得丰富的结构信息。 图1 xas原始数据示例 . 1.

2018年7月31日 · With more than 500,000 K-edge X-ray absorption near edge (XANES) spectra for more than 40,000 unique materials, this database constitutes the largest existing collection of computed XAS spectra...

X-ray periodic table of edges & emission lines. X-ray attenuation calculations. Analyzer Darwin width and crystal calculations.